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// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_UPDATER_EXTERNAL_CONSTANTS_H_
#define CHROME_UPDATER_EXTERNAL_CONSTANTS_H_
#include <optional>
#include <vector>
#include "base/memory/ref_counted.h"
#include "base/memory/scoped_refptr.h"
#include "base/time/time.h"
#include "base/values.h"
class GURL;
namespace base {
class TimeDelta;
}
namespace crx_file {
enum class VerifierFormat;
}
namespace updater {
// Several constants controlling the program's behavior can come from stateful
// external providers, such as dev-mode overrides or enterprise policies.
class ExternalConstants : public base::RefCountedThreadSafe<ExternalConstants> {
public:
explicit ExternalConstants(scoped_refptr<ExternalConstants> next_provider);
ExternalConstants(const ExternalConstants&) = delete;
ExternalConstants& operator=(const ExternalConstants&) = delete;
// The URL to send update checks to.
virtual std::vector<GURL> UpdateURL() const = 0;
// The URL to send crash reports to.
virtual GURL CrashUploadURL() const = 0;
// The URL to fetch device management policies.
virtual GURL DeviceManagementURL() const = 0;
// The URL for the app logos.
virtual GURL AppLogoURL() const = 0;
// True if client update protocol signing of update checks is enabled.
virtual bool UseCUP() const = 0;
// Time to delay the start of the automated background tasks
// such as update checks.
virtual base::TimeDelta InitialDelay() const = 0;
// Minimum amount of time the server needs to stay alive.
virtual base::TimeDelta ServerKeepAliveTime() const = 0;
// CRX format verification requirements.
virtual crx_file::VerifierFormat CrxVerifierFormat() const = 0;
// Policies for the `PolicyManager` surfaced by external constants.
virtual base::Value::Dict DictPolicies() const = 0;
// Overrides the overinstall timeout.
virtual base::TimeDelta OverinstallTimeout() const = 0;
// Overrides the idleness check period.
virtual base::TimeDelta IdleCheckPeriod() const = 0;
// Overrides machine management state.
virtual std::optional<bool> IsMachineManaged() const = 0;
// The maximum time allowed to establish a connection to CECA.
virtual base::TimeDelta CecaConnectionTimeout() const = 0;
protected:
friend class base::RefCountedThreadSafe<ExternalConstants>;
scoped_refptr<ExternalConstants> next_provider_;
virtual ~ExternalConstants();
};
// Sets up an external constants chain of responsibility. May block.
scoped_refptr<ExternalConstants> CreateExternalConstants();
} // namespace updater
#endif // CHROME_UPDATER_EXTERNAL_CONSTANTS_H_
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